Over 40,000 medium-duty Chevy Silverado medium-duty trucks are being recalled for a potential fire risk related to a faulty brake pressure sensor.
According to the National Highway Traffic Safety Administration (NHTSA) the recall impacts 2019-2023 Chevy 4500HD, 5500HD and 6500HD medium-duty trucks. An estimated 1% of the 40,428 trucks affected by the recall are thought to have the defect.
A leak from the brake pressure sensor assembly may contact the brake pressure switch and cause an electrical short-circuit which may cause a fire while the truck is being driven or parked.
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the master cylinder pressure sensor and inspect the wire harness, replacing it, if necessary, free of charge.
The condition may trigger a “service brake system” malfunction indicator lamp. If brake fluid shorts the brake pressure switch and the associated fuse, the circuit can generate excessive heat that could result in a fire, increasing the risk of injury. An underhood fire may occur when the vehicle is off and possibly unattended.
GM is not aware of any accidents or injuries resulting from the defect.
Interim letters notifying owners of the safety risk are expected to be mailed May 29, 2023. Second letters will be mailed once the remedy is available. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222375270.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov and refer to NHSTA recall number 23V-266.